On Wed, Sep 05, 2012 at 07:35:22PM +0100, Gordon JC Pearce wrote:
On 05/09/12 16:48, Trevor . wrote:
Getting CubeSat's to MEO or HEO will depend on developing propulsion, fold-out solar panels, and even CubeSat directional antennas - I wonder could a 2m 2 ele Yagi be incorporated into a 3U CubeSat ?
As a first-order approximation, my HB9CV is just about 260mm between elements, or a little shorter than a 3U cubesat. So it seems to me that you could make a two-element "tape measure" beam with the elements wrapped around the can at opposite ends and ensure it always points driven end downwards. The rest is just standard pyro to unwrap the aerial elements.
Piece of wire driven by some electricity works well enough. No need for big pyro explosions.
-- Gordon JC Pearce MM0YEQ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Diane Bruce VA3DB